Thread-guiding arrangement



Oct. 26, 1943.

R. BOUVET ET AL THREAD-GUIDING ARRANGEMENT Fil-ed Dec. 9, 1941 FENE EDUVET VV/LL/FIM L. EF HNN INVENTORS Y batente d Oct. 26, I943 2,332,389, UNITED STATES PATENT OFFICE 2,332,889 THREAD-GUIDING ARRANGEMENT Rcn'Bouvet, Drexel Hill, and William L. Spann, Boothwyn, Pa., assignors to American Viscose Corporation, Wilmington, Del., a corporation of Delaware 9 Application December 9, 1941, Serial No. 422,223

8 Claims. (Cl. 242-131) This invention relates to apparatus for facilitating unwinding continuous filamentary material, such as strands or yarns, in sequence from a plurality of packages thereof.

It is an object of the invention to provide a novel arrangement of apparatus for guiding continuous filamentary material sequentially from a plurality of packages without interruption to a common point from which the continuous filamentary material may be drawn to a common winding device, such as a warping beam or cone winder or to a machine utilizing the material,

prises means for supporting a pair of cakes or other packages (such as bobbins, cones, balls, etc.) of yarn or filamentary material. This means for supporting the packages may consist of any stationary base, such as an ordinary table or bench. The drawing shows two such tables, 2 and 3, though a single supporting table or bench may be employed instead, The yarn packages or cakes 4 and 5.rest upon the supports 2 and 3 respectively. A pair of guides Band I are supported, as by means of the fixed upright 8 and the cross bar 9 secured thereto, above the cakes 4 and 5 and roughly in alignment with their centers. A guide I0 is symmetrically disposed above the guides 6 and I and is hereinafter referred to as the control or master guide. Spring clips II and I2 are suitably supported-outside the region of ballooning of the yarn as it proceeds from the package being unwound through its corresponding guide thereabove. As shown in the drawing, these clips are supported by bars l3 and I4 extending longitudinally outwardly from the cross bar 9. However, these barsl3 and may extend at any angle from cross-bar 9 provided the yarn extending from the clip to a point heneath the nearest guide in cross bar 9, such as yarn length 15, does not interfere with the ballooning portion of the yarn, such as yarn length 16, as it proceeds upwardly through the same guide in the cross bar. If desired, the supports for the cli'psmay be fastened to other stationary .bases, such .asthe tables I and 3 respectively.

The upper peripheries of the guides 6 and I may be provided with notches l1 and I8 respectively, at points opposite or away from the peripheral portionstof the periphery of such guides across which the yamlength l6 is'drawn as wound from the package and conducted to guide l0.

In operation of the device, the end of the yarn 'on the outside of the package 5 is threaded through guide I and master guide Ill-to whatever winding or other take-up device may be desired. The trailing end of the yarn upon the inside of the cake 5 is fastened, such as by tying, splicing, cementing or soldering, at l9, to the leading end of the yarn on the outside of package 4, which, previously to being tied or otherwise fastened,- is led upward through guide 6 and downward through guide I, and thence into the clip l2 to form a loop 20 beneath guide I. The threading of this leading end of package 4 through the notch it of guide I assures that it will not interfere with the yarn being unwound from package 5 as it proceeds through guide 1. The trailing end of the yarn on the inside of package 4 i withdrawn and caught within the clip ll, thus holding this end in readiness for subsequent tying to the leading end of the next package to be put upon support 3 in place of package 5 after package 5 has been completely unwound; When package 5 is completely unwound, its trailing endpull the leading end of package 4 from clip I2 thus taking the loop 20 .through. guide 6 to be tied to the inside yarn entirely through guide I and then directly with-' drawing the yarn from package 4 through guide 6 and through master guide In. A fresh package may be supplied to table 3, theleading end of' which will be threaded up through guide 1 around the top of guide 6, through notch I1 and down end of package 4 held in clip H to form a closed loop similar to loop 20.

While the outside end of the package is described as the leading ,end, that is, the first to be unwound, and the inside end is the trailing end,

the arrangement may be reversed, if desired, it

being only necessary in such event to lead off the inside end first and tie the inside end of the other package to the outside end of the one being unwound and looping in a. manner analogous to that described above. It is not essential that a the axis of the packages be parallel. The aritisunrangement is not limited to the use of apair of packages. Three, four or any number of packages may be employed, a guide and clip being provided for each package and the respective trailing and leading ends of the several packages being tied to, unwind the package in any desired order.

or a larger number of packages, may be employed, such as in a warping creel.

.While a preferred embodiment of the invention has been disclosed, the description is intended to be illustrative only, and it is to be understood that changes and variations may be made without departing from the spirit or scope Furthermore, a plurality of unwinding arrangements, whether involving a pair of the invention as defined by the appended claims. Y

' What we claim is:

1. A device for facilitating unwinding of packages of filamentaryjmaterial in sequence'comprising a plurality 'of closed guides for filamentarymaterial, means for supporting a plurality of wound packages of filamentary material, each in unwinding relation with respect to a corresponding one of said plurality of guides, and.

means for releasably holding a loop formed by uniting the trailing end of one of said packages with the leading end of another of said packages extending from the latter package directly through its corresponding guide and back through the guide corresponding to the former package out of the region of ballooning of the former package.

2. A device for facilitating unwindingoi pack ages of filamentary material in sequence comprising a plurality of stationary closed guides for filamentary material; means for supporting a plurality of wound packages of filamentary material, each in unwinding relation with respect to a corresponding one of said plurality of guides, means, for releasably holding a loop formed by unitingthe trailing end of one of'said packages with the leading end of another of said packages extending from the latter package directly through its corresponding guide and back through the guide corresponding to the former each in approximate alignment with the corresponding one of said plurality of guides, a master guide approximately symmetrically disposed with respect to said plurality of guides for directing the filamentary material in succession from each of said plurality of guides through a common point, a notch in the face of each of said plurality of guides nearest said master guide but away from the portion of the face nearest said package out of the region of ballooning of the I former package.

3. A device for. facilitating unwindingof packages of filamentary material in sequence comprising a plurality of stationaryclosed guides for filamentary material, means for supporting a plurality of Wound packages of filamentary material each in unwinding relation with respect .to ajcorresponding one of said plurality of guides, a master guide for directing the filamentary material in succession from each of said plurality of guides through a common point, and means for releasably holding a loop formed by uniting the trailing end of one of said packages with the leading end of another of said Packages extending from the latter package directly through its corresponding guide and back through the guide corresponding to the former package out of the region of ballooning of the former package,

prising a plurality of stationary closed guides for filamentary material, means for supporting a plurality of wound packages of filamentary material each in approximate alignment with a corresponding one of said plurality of guides, a master guide approximately symmetrically disposed with respect to said plurality of guides for directing the filamentary material in succession 4. A device for facilitating unwinding of packv ages of filamentary material in sequence commaster guide, and means for releasably holding a loop formed by uniting the trailing end of one of said packages with the leading end of another of said packages out of the region of ballooning v of the former package. v

6. A device for facilitating unwinding of packages of filamentary material iii-sequence comprising a plurality of stationary closed guides for filamentary material, means for supporting a plurality of wound packages of filamentary,

material each in approximate alignment with a corresponding one ofsaid plurality of guides, a master guide approximately symmetrically disposed with respect to said plurality of guides for directing the filamentary material in succession from each of said plurality of guides through a common-point, and a spring clip for releasably holding a loop formed by uniting the trailing end of one of said packages with the leading end of another of said packages extending from the latter package directly through its corresponding guide and back through the guide corresponding to the former package out of the region of ballooning of the former package.

7. A device for facilitating unwinding of packages of filamentary material in sequence comprising a plurality of stationary closed guides for filamentary material, means for supporting a plurality of wound packages of filamentary material each in approximate alignment with.

from each of said plurality of, guides through a a common point, and means for releasably holding mentary material, means for supporting a plurality of wound packages of filamentary material,

a correspondingone ofsaid plurality of guides,

- a master guide approximately symmetrically disposed with respect to said plurality of guides for directing the filamentary material in succession from each of said plurality of guides through acommon point, and means associated with each of said plurality of guides for releasably holding 9. loop formed by uniting the trailing end of a corresponding one or said packages with the leading end of another of said packages extending from the latter package directly through its corresponding'guide and back through the guide corresponding to the former package out'of the region of ballooning of the former package.

8. .A device for facilitating unwinding of packages of filamentary material in sequence oomprising a plurality of stationary closed guides for Lfilamentary material, means for supp rting a plurality'of wound packages of filamentary material each in approximate alignment with a corresponding one of said plurality of guides, a

master guide approximately symmetrically disposed with respect to said plurality of guides for directing the filamentary material in succession from each of said plurality of guides through a commonpoint, means for releasably holding a. loop formed by uniting the trailing end of one of.

said packages with the leading end of another of said packages extending from the latter package directly through its corresponding guide and back through the guide corresponding to the. former package out of the region of ballooning of the formerpackage.

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